Bump actions/upload-artifact from 2 to 3

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 2 to 3.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v2...v3)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yml

@@ -46,22 +46,22 @@ jobs:
         env:
           IMAGE: ${{ github.repository }}
       - name: upload-convox-linux-amd64
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: convox-linux-amd64
           path: ./cmd/convox/pkg/convox-linux-amd64
       - name: upload-convox-linux-arm64
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: convox-linux-arm64
           path: ./cmd/convox/pkg/convox-linux-arm64
       - name: upload-convox-darwin-10.16-amd64
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: convox-darwin-10.16-amd64
           path: ./cmd/convox/pkg/convox-darwin-10.16-amd64
       - name: upload-convox-darwin-arm64
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: convox-darwin-arm64
           path: ./cmd/convox/pkg/convox-darwin-arm64